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A multifunctional noise reduction mechanism

A multi-functional and silencing technology, used in mechanical equipment, machines/engines, liquid variable capacity machinery, etc., it can solve the problem of uneven distribution of dust particles and airflow, damage to the resistive muffler, affecting the sound blocking performance and service life, etc. It can reduce the gas passing resistance, prevent local damage, and increase the maximum gas passing capacity.

Active Publication Date: 2016-06-29
沛县华达电子器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems in the above-mentioned prior art, the resistive muffler part of the above-mentioned impedance compound muffler is impacted by high-frequency airflow pulsation, and the distribution of dust particles and air flow in the gas is uneven, and the resistive muffler part is prone to local damage, which affects its sound resistance. The problem of performance and service life, and the problem that the noise reduction ability of the muffler also needs to be further improved, the present invention provides a kind of multifunctional muffler mechanism

Method used

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  • A multifunctional noise reduction mechanism
  • A multifunctional noise reduction mechanism
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Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1, a multifunctional noise reduction mechanism provided by the present invention comprises a barrel-shaped lower casing 1, an upper cover 4 is fixedly connected to the beginning end of the lower casing 1, and the upper cover 4 and the lower casing 1 enclose a noise reduction chamber 9 , the muffler cavity 9 is provided with a resistive muffler, the upper cover 4 or the lower housing 1 is also provided with an air outlet 7 and an air inlet 8 communicating with the muffler cavity 9, and also includes a cylindrical shape with multiple side walls. An inner cylinder 2 with a through hole, one end of the inner cylinder 2 is fixed on the bottom of the lower casing 1, the resistive noise-absorbing part includes a plurality of noise-absorbing barrels 3, the sound-absorbing barrels 3 are in the shape of a barrel with an open lower end, and its side is provided with A plurality of strip-shaped ribs 33 parallel to its axial direction, the left and right sides of the ...

Embodiment 2

[0032] This embodiment is further limited on the basis of embodiment 1: as figure 1 , the top of the sound-absorbing barrel 3 is provided with an internally threaded through hole, and a connecting screw 31 threadedly connected thereto is arranged in the internally threaded through-hole, and the upper and lower ends of the connecting screw 31 protrude respectively relative to the upper and lower ends of the sound-absorbing barrel The connecting screw 31 on the outside of the top of the sound-absorbing barrel 3 is provided with a nut 32 threadedly connected with the connecting screw 31. The sound-absorbing barrel interface 11 is a hole-like structure that runs through the bottom of the lower housing 1, and the hole-like structure is provided with The two ends of the rib connected with its inner wall are provided with a connecting screw hole, and the lower end of the connecting screw 31 is threadedly connected with the connecting screw hole.

[0033] The intersection of the hole ...

Embodiment 3

[0036] This embodiment is further limited on the basis of embodiment 1: as figure 1 and image 3 , the lower end of the sound-absorbing barrel 3 or its inner wall is provided with at least one rigidity cage 34 parallel to the radial direction of the sound-absorbing barrel 3, and the rigidity cage 34 includes a circular tube 341 and at least two connecting bars 342 , the two ends of the connection bar 342 are fixedly connected with the sound-absorbing bucket 3 and the circular pipe 341 respectively, and the connecting strips 342 are evenly distributed in a ring shape, the connecting screw 31 and the circular pipe 341 form a clearance fit, and the lower end of the sound-absorbing bucket 3 is still A sealing ring is provided.

[0037] In the above settings, there are gaps between adjacent connecting bars 342 for the circulation of gas in the inner cavity of the sound-absorbing bucket 3, and the circular tube 341 provided is used to reduce the span between the fulcrums of the con...

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Abstract

The invention discloses a multifunctional noise reduction mechanism, which comprises a lower casing, an upper cover is fixedly connected to the beginning end of the lower casing, the upper cover and the lower casing form a noise reduction cavity, and a resistive noise reduction part is arranged in the noise reduction cavity. The upper cover or the lower shell is also provided with an air outlet and an air inlet, and also includes an inner cylinder with a plurality of through holes on the side wall. The axial strip edge, the left and right sides of the strip edge are fixedly connected with resistive sound-absorbing materials, and the bottom of the lower shell is also equipped with a number of silencer barrel interfaces equal to the number of sound-absorbing barrels, and the air inlet is set in the lower shell On the side wall of the lower housing, and the gas flow direction of the air inlet at the junction with the lower housing is tangent to the inner wall of the lower housing, and a dust bucket is also arranged on the outer bottom of the lower housing. The invention has good sound-absorbing effect, and is beneficial to prevent the situation that the local load of the resistive sound-absorbing part is large and the gaps thereon are easily blocked by dust particles.

Description

technical field [0001] The invention relates to an air compressor noise reduction device, in particular to a multifunctional noise reduction mechanism. Background technique [0002] An air compressor is a device used to compress gas. Most air compressors are reciprocating pistons, rotating blades or rotating screws, which convert the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy. Widely used in petroleum, chemical and food manufacturing industries. [0003] The air compressor is a typical large-scale power equipment, and the intake noise is an important source of its noise, especially in the reciprocating piston compressor, at the suction port of the cylinder, the sound wave is radiated from the intake port in the form of pulsating changes . In the prior art, the muffler applied to the air inlet of the compressor mostly adopts an impedance compound muffler, and the muffler for the noise of the air inlet can reach 30 decibels or m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00
Inventor 朱文远周尚燕胡建中
Owner 沛县华达电子器材有限公司
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